Home / 112,921.06-155,831.06-62,620.06

Finding the Fourth Proportional to 112,921.06, 155,831.06 and 62,620.06

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Solution

The fourth proportional to 112,921.06, 155,831.06 and 62,620.06 is: 86,415.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,921.06 : 155,831.06 = 62,620.06 : x
  2. Step 2: Convert to fraction form
    112,921.06/155,831.06 = 62,620.06/x
  3. Step 3: Cross multiply
    112,921.06x = 155,831.06 × 62,620.06
  4. Step 4: Simplify right side
    112,921.06x = 9,758,150,327.06
  5. Step 5: Solve for x
    x = 9,758,150,327.06/112,921.06
  6. Step 6: Final answer
    x = 86,415.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.